EP3648299A1 - Circuit oscillant résonnant pour transmission d'énergie électrique sans amplificateur de puissance - Google Patents

Circuit oscillant résonnant pour transmission d'énergie électrique sans amplificateur de puissance Download PDF

Info

Publication number
EP3648299A1
EP3648299A1 EP18203702.8A EP18203702A EP3648299A1 EP 3648299 A1 EP3648299 A1 EP 3648299A1 EP 18203702 A EP18203702 A EP 18203702A EP 3648299 A1 EP3648299 A1 EP 3648299A1
Authority
EP
European Patent Office
Prior art keywords
resonant
resonant circuit
coil
capacitor
electrical energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18203702.8A
Other languages
German (de)
English (en)
Inventor
Heinz Zenkner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP18203702.8A priority Critical patent/EP3648299A1/fr
Priority to PCT/EP2019/078352 priority patent/WO2020088952A1/fr
Publication of EP3648299A1 publication Critical patent/EP3648299A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type

Definitions

  • the present invention relates to a device for transmitting electrical energy to at least one electrical consumer, for example an accumulator, comprising at least one transmitter device for transmitting electrical energy with at least one first coil and at least one first capacitor for generating a resonant resonant circuit on the transmitter device, at least a receiver device for receiving the energy transmitted by the transmitter device with at least one second coil and at least one second capacitor for generating a resonant resonant circuit on the receiver device, the receiver device being connectable to the consumer to form an electrical connection, a power amplifier, a transformer for adaptation the impedance between the resonant resonant circuit at the receiver device and the consumer and an electrical energy source, in particular an AC voltage source, for Supply of the resonant resonant circuit on the transmitter device with electrical energy.
  • an electrical energy source in particular an AC voltage source
  • the wireless transmission of electrical energy from a transmitter to a receiver has long been known.
  • the problem with devices according to the prior art for wireless energy transmission is the relatively high energy loss during the transmission, so that no high or at least insufficient efficiency in the transmission can be achieved.
  • the object of the present invention is therefore to provide a device with which wireless energy transmission can be achieved with high efficiency.
  • a device for transmitting electrical energy to at least one electrical consumer for example an accumulator, comprising at least one transmitter device for transmitting electrical energy with at least one first coil and at least one first capacitor for generating a resonant resonant circuit on the transmitter device , at least one receiver device for Receiving the energy transmitted by the transmitter device with at least one second coil and at least one second capacitor for generating a resonant resonant circuit at the receiver device, the receiver device being connectable to the consumer to form an electrical connection, a power amplifier, a transformer for adapting the impedance between the resonant resonant circuit on the receiver device and the consumer and an electrical energy source, in particular an AC voltage source, for supplying the resonant resonant circuit on the transmitter device with electrical energy.
  • an electrical consumer for example an accumulator
  • the transmitter device and receiver device together form a series-resonant resonant circuit for transmitting the electrical energy from the transmitter device to the receiver device, so that in the receiver device the electrical energy made available by the transmitter device can be supplied to the consumer. This allows electrical energy to be transmitted in an efficient manner.
  • the consumer can be configured in the form of a load, an electrical resistance, a memory, an energy store, a converter or in the form of other components which can make the supplied energy usable for its function.
  • the invention is based on the principle of inductive coupling with two resonant, highly efficient resonant resonant circuits, a first resonant circuit being fed with correspondingly high-frequency energy in such a way that the high-frequency energy is transmitted to the second resonant circuit in order to make it available to an electrical consumer . Since the first resonant circuit is highly resonant, the electrical energy in the resonant circuit is reduced only relatively slowly over many oscillation cycles. However, the electrical energy is absorbed by the second resonant circuit if the two resonant circuits do not exceed a predetermined distance from one another.
  • the transformer can also be referred to as a matching transformer.
  • the resonant resonant circuit can also be referred to as a resonant circuit.
  • the power amplifier serves as a clock for the frequency of the resonant resonant circuit on the transmitter device.
  • the power amplifier is designed in such a way that either a low-impedance or high-impedance energy source for the resonant resonant circuit is generated on the transmitter device.
  • the transmitter device contains a second capacitor and third capacitor and a third coil, the third capacitor and the second coil being arranged parallel to one another for generating a further parallel resonant resonant circuit on the transmitter device and wherein the further resonant circuit with parallel resonance and the second capacitor are arranged in series with one another.
  • the transmission power of the transmitter device can be increased essentially by 15% and the temperature in the first coil can be reduced essentially by 15%.
  • the first coil and the first capacitor of the transmitter device are arranged parallel to one another in order to generate a parallel-resonant resonant circuit on the transmitter device. It is possible for the second coil and the second capacitor of the receiver device to be arranged in series with one another in order to produce a series-resonant resonant circuit on the receiver device. As a result, a high electrical voltage value and a low electrical current value can be generated on the transmitter device. This arrangement is particularly advantageous in the case of a high-impedance energy source for supplying the transmitter device.
  • the second coil and the second capacitor of the receiver device may be arranged parallel to one another in order to produce a parallel-resonant resonant circuit on the receiver device.
  • the parallel resonant circuit on the receiver device has a high impedance.
  • the first coil and the first capacitor of the transmitter device may be arranged in series with one another in order to produce a series-resonant resonant circuit on the transmitter device.
  • a larger ratio of a first winding to a second winding can be generated on the transformer.
  • a higher voltage value and at the same time a lower current value can be generated at the receiver device, thereby reducing energy loss at the second coil of the receiver device.
  • both the first and the second coil can contain a ferrite core which has a specific resistance of 10 5 to 10 6 ⁇ m and a magnetic permeability of 50 to 500, in particular 125. This allows the resonant resonant circuit on the receiver device to be operated in an efficient manner are generated so that a large amount of energy can be sent from the transmitter device to the receiver device.
  • the ferrite core at least partially contains nickel-zinc alloy (NiZn).
  • NiZn nickel-zinc alloy
  • the ferrite core may also be possible for the ferrite core to be U-shaped and to have a cross-sectional area of 5.65 cm 2 , so that a power density of 35 during the transmission of the electrical energy from the transmitter device to the receiver device W / cm 2 can be achieved with an input power of 200W.
  • the resonant resonant circuit can be generated in an efficient manner on the receiver device, so that a large amount of energy can be sent from the transmitter device to the receiver device.
  • the frequency of the resonant resonant circuit at the transmitter device can be between 2 and 30 MHz, in particular between 6.765 and 6.795 MHz, for example at 6.78 MHz.
  • the resonant resonant circuit can be generated in an efficient manner on the receiver device, so that a large amount of energy can be sent from the transmitter device to the receiver device.
  • a variable capacitor for example a trimmer capacitor
  • an adequately acting electronic circuit for tuning the resonance frequency can also be contained in the transmitter device and / or in the receiver device instead of a trimmer capacitor.
  • the receiver device can contain a transmitter for increasing the efficiency by adapting the impedance and for decoupling the resonant resonant circuit at the receiver device and the consumer.
  • the transmitter can also be designed as an integrated transmitter.
  • the transformer can be integrated as an additional winding on the resonant resonant circuit on the receiver device.
  • the ferrite core of the first coil and / or second coil can be designed in a wide variety of forms. Due to the different shapes of the ferrite core, the installation of the device according to the invention in a housing can be adapted to certain geometric specifications and in particular to a possible lack of space.
  • Figure 1 to 8 show schematic circuit diagrams of the device 1 according to the invention for transmitting electrical energy from a transmitter device 2 to a receiver device 3 according to different exemplary embodiments.
  • the device 1 essentially contains a transmitter device 2 and a receiver device 3.
  • the transmitter device 2 is used to receive electrical energy and to transmit or transmit electrical energy to the receiver device 3. To supply electrical energy, the transmitter device 2 is connected to an electrical energy source. The supply of electrical energy takes the form of an alternating current source. The energy source is not shown in the figures.
  • the receiver device 3 in turn serves for receiving the transmitted electrical energy, processing or processing and for forwarding it to an electrical consumer 4.
  • the electrical consumer 4 can be configured, for example, as an accumulator with an integrated rectifier.
  • the rectifier is used to convert the AC voltage generated at the receiver device 3 into a DC voltage.
  • the consumer 4 it is also possible for the consumer 4 to be designed only as an electrical resistor.
  • the electrical consumer 4 designed as an accumulator can be selectively and releasably connected to the receiver device 3 in order to be supplied with electrical current or to charge the accumulator with electrical energy.
  • the device 1 according to the invention serves as a charging device for the consumer 4 designed as an accumulator.
  • Figure 1 shows a schematic circuit diagram according to a first embodiment of the device 1 according to the invention.
  • the device 1 essentially contains the transmitter device 2 and the receiver device 3.
  • the transmitter device 2 contains a first coil 5 and a first capacitor 6.
  • the first coil 5 and the first capacitor 6 are connected in series so that a first resonant resonant circuit is formed.
  • the first resonant resonant circuit is accordingly a series-resonant resonant circuit.
  • This first resonant resonant circuit is also referred to as a transmitter resonant circuit.
  • the transmitter device 2 can contain a first trim capacitor 7, which is used to adjust the capacitance or the resonance frequency in the transmitter device 2.
  • the first trim capacitor 7 can also be referred to as a variable capacitor.
  • the receiver device 3 contains a second coil 8 and a second capacitor 9.
  • the second coil 8 and the second capacitor 9 are connected in series in such a way that a second resonant resonant circuit is formed.
  • the second resonant resonant circuit is accordingly a series-resonant resonant circuit.
  • This second resonant resonant circuit is also referred to as a receiver resonant circuit.
  • the receiver device 3 can contain a second trimming capacitor 10, which is used to adjust the capacitance or the resonance frequency in the receiver device 3.
  • the second trim capacitor 10 can also be referred to as a variable capacitor.
  • the device 1 also contains a rectifier 11 for converting the AC voltage generated at the receiver device 3 into a DC voltage.
  • the rectifier 11 is configured as a two-pulse center rectifier.
  • the rectifier 11 contains a two-pulse center circuit 12 contains a first diode 13 and a second diode 14.
  • the two-pulse center circuit 12 is used to generate a higher efficiency.
  • the rectifier 11 with the two-pulse center circuit 12 according to an alternative embodiment, only one rectifier 11 and two diodes can be used. Alternatively, any other suitable type of rectifier can also be used.
  • the first embodiment of the device 1 contains a transmitter 15 which is connected to the receiver device 3.
  • the transformer 15 serves to adapt the electrical voltage and, according to the embodiments shown in the figures, essentially contains a circular ferrite core 16.
  • the first winding N 1 has a first number of wire windings and the second winding N 2 has a second number of wire windings.
  • the first winding N 1 contains a higher number of windings than the second winding N 2 .
  • FIG 2 is a schematic circuit diagram of the device 1 according to the invention according to a second embodiment.
  • the device 1 according to the second embodiment essentially corresponds to the device 1 according to the first embodiment in FIG Figure 1 .
  • the device 1 according to the second embodiment differs from the device 1 according to the first embodiment in that the first coil 5 and the first capacitor 6 of the transmitter device 2 are connected to one another in parallel, so that a parallel resonant resonant circuit is generated.
  • the receiver device 3 according to the second embodiment of the device 1 according to the invention also contains a second coil 8 and a second capacitor 9, which are connected to one another in series (ie in series), so that a series-resonant resonant circuit is formed.
  • FIG 3 a schematic circuit diagram of the device 1 according to the invention according to a third embodiment is shown.
  • the device 1 according to the third embodiment essentially corresponds to the device 1 according to the first or second embodiment in FIG Figure 1 respectively.
  • Figure 2 The device 1 according to the third embodiment differs from the device 1 according to the first or second embodiment in that the first coil 5 and the first capacitor 6 of the transmitter device 2 are connected to one another in series (that is, in series), so that a series-resonant resonant circuit is generated.
  • the receiver device 3 according to the third embodiment of the device 1 according to the invention also contains a second coil 8 and a second capacitor 9, which are connected in parallel with one another, so that a parallel resonant resonant circuit is formed.
  • FIG 4 is a schematic circuit diagram of the device 1 according to the invention according to a fourth embodiment.
  • the device 1 according to the fourth embodiment essentially corresponds to the device 1 according to the first, second or third embodiment, which is correspondingly shown in FIGS Figure 1 to 3 are shown.
  • the device 1 according to the fourth embodiment differs from the device 1 according to the first, second or third embodiment in that the first coil 5 and the first capacitor 6 of the transmitter device 2 are connected to one another in parallel, so that a parallel-resonant resonant circuit is generated.
  • the receiver device 3 according to the second embodiment of the device 1 according to the invention in turn contains a second coil 8 and a second capacitor 9, which are connected in parallel with one another, so that a parallel resonant resonant circuit is formed.
  • FIG 5 is a schematic circuit diagram of the device 1 according to the invention according to a fifth embodiment.
  • the device 1 according to the fifth embodiment essentially corresponds to the device 1 according to the third embodiment, which is shown in FIG Figure 3 is shown.
  • the rectifier 11 on the receiver device 3 according to the fifth embodiment is designed in the form of a bridge rectifier instead of a two-pulse center rectifier.
  • FIG 6 a schematic circuit diagram of the device 1 according to the invention according to a sixth embodiment is shown.
  • the device 1 according to the sixth embodiment essentially corresponds to the device 1 according to the first embodiment, which in Figure 1 is shown.
  • the receiver device 3 in the device 1 according to the sixth embodiment contains a transmitter 15 without a separate or separate ferrite core.
  • the ferrite core 20 of the second coil 8 of the receiver device 3 serves as the ferrite core of the transmitter 15.
  • the rectifier 11 of the device 1 of the sixth embodiment is designed in the form of a bridge rectifier.
  • FIG. 7 a schematic circuit diagram of the device 1 according to the invention according to a seventh embodiment is shown.
  • the device 1 according to the seventh embodiment essentially corresponds to the device 1 according to the sixth embodiment, which is shown in FIG Figure 6 is shown.
  • the rectifier 11 of the receiver device 3 according to the seventh embodiment is designed as a two-pulse midpoint rectifier instead of a bridge rectifier.
  • FIG. 8 a schematic circuit diagram of the device 1 according to the invention according to an eighth embodiment is shown.
  • the device 1 according to the eighth embodiment essentially corresponds to the device 1 according to the first embodiment, which is shown in FIG Figure 1 is shown.
  • the consumer 4 is connected to the receiver device 3 instead of a rectifier 11.
  • the consumer 4 is configured in the device 1 according to the eighth embodiment in the form of an electrical resistance.
  • the transmitter device 2 contains a first trim capacitor 7 and the receiver device 3 contains a second trim capacitor 10.
  • the transmitter device 2 contains a first trim capacitor 7 and the receiver device 3 does not contain a trim capacitor.
  • the receiver device 3 contains a trimming capacitor 10 and the transmitter device 2 does not contain a trimming capacitor. It is also possible that neither the transmitter device 2 nor the receiver device 3 contain a trimming capacitor.
  • the capacitor 17 can be designed as a ceramic capacitor or as an electrolytic capacitor (ELKO).
  • the consumer 4 contains two capacitors.
  • One of the two capacitors is designed as a ceramic capacitor and the other capacitor as an electrolytic capacitor (ELKO).
  • the two capacitors are used to smooth the high frequency and as a buffer to compensate for possible current fluctuations.
  • the wire material used to build the coils and transformers must be RF-compatible (i.e. suitable for a high frequency). Appropriate strands or other suitable components with an appropriate material must be selected for this.
  • the first coil 5 includes the first coil 5 a ferrite core 18 consisting of nickel-zinc (NiZn) having a resistivity of 10 5 to 10 6 ohm-m and a magnetic permeability of 125.
  • NiZn nickel-zinc
  • the magnetic permeability is between 50 and 500 or in particular between 80 and 200.
  • the second coil 8 also contains a ferrite core 20 consisting of nickel-zinc (NiZn) likewise with a specific resistance of 10 5 to 10 6 ⁇ m and a magnetic permeability of 125.
  • NiZn nickel-zinc
  • the ferrite core 18 of the first coil 5 and the ferrite core 20 of the second coil 8 are U-shaped and have a cross-sectional area of 5.65 cm 2 , so that a power density of 35 W / cm during the transmission of the electrical energy 2 is achieved with an input power of 200 W.
  • the ferrite core 18 of the first coil 5 and the ferrite core 20 of the second coil 8 can be configured in different shapes.
  • the ferrite core 18 of the first coil 5 and the ferrite core 20 of the second coil 8 are always arranged with respect to one another in the device 1 according to the invention such that the field radiation of the respective ferrite core 18, 20 is directed towards one another.
  • the ferrite core 18, 20 of the first and / or second coil 5, 8 is designed according to a first embodiment in a U-shape.
  • a wire 30 for winding a coil is wound around the respective ferrite core 18, 20.
  • the ferrite core 18, 20 is shown according to a second embodiment.
  • the ferrite core 18, 20 according to the second embodiment essentially contains a base web 41, of which a first web is located at the respective ends 41a, 41b of the base web 41 and the second web 42, 43 extend perpendicular to the base web 41. Between the first and second web 42, 43, a third web 44 extends perpendicular to the base web 41.
  • the first, second and third web 42, 43, 44 extend in the same direction A.
  • the third web 44 has a round cross-section.
  • the second and third web 42, 43 have a rectangular cross section.
  • the ferrite core 18, 20 is shown according to a third embodiment.
  • the ferrite core 18, 20 according to the third embodiment has a curved shape and is configured essentially straight than in the first embodiment.
  • the ferrite core 18, 20 is shown according to a fourth embodiment.
  • the ferrite core 18, 20 according to the fourth embodiment essentially contains a base web 51, from which a first web 52 and a second web 53 extend in the direction A at the respective ends 51a, 51b of the base web 51 and perpendicular to the base web 51.
  • the first and second web 52, 53 have a circular cross section.
  • FIG 13 shows the ferrite core 18, 20 according to a fifth embodiment.
  • the ferrite core 18, 20 according to the fifth embodiment essentially contains a base web 61, from which a first web 62 and a second web 63 extend in the direction A at the respective ends 61a, 61b of the base web 61 and perpendicular to the base web 61.
  • the first and second web 62, 63 have a rectangular cross section.
  • the ferrite core 18, 20 is shown according to a sixth embodiment.
  • the ferrite core 18, 20 according to the sixth embodiment contains a base plate 71 with a cylindrical elevation 72 in the middle M.
  • At a first end 71a of the base plate 71 is a first arcuate elevation 73 and at a second end 71b of the base plate 71 is a second one arcuate elevation 74 positioned.
  • the first and second elevations 73, 74 are arranged on the base plate 71 such that the respective concave surfaces of the two arcuate elevations 73, 74 are directed towards one another.
  • the cylindrical elevation is positioned on the base plate 71 between the two arcuate elevations 73, 74. All three elevations 72, 73, 74 extend in the same direction A from the base plate 71.
  • the wire 30 for winding a coil can be seen wound around the cylindrical elevation in the middle M according to a first winding arrangement.
  • Figure 15 the ferrite core 18, 20 according to the sixth embodiment is shown.
  • the wire 30 for winding a coil is arranged on the base plate 71 in accordance with a second winding arrangement.
  • a distance D extends between the first coil 5 of the transmitter device 2 and the second coil 8 of the receiver device 3.
  • the distance D is approximately 40 mm.
  • a power amplifier 80 on the transmitter device 2 serves as a clock for the frequency of the resonant resonant circuit on the transmitter device 2.
  • the power amplifier is connected to an AC voltage source for this purpose.
  • the AC voltage source which can also be referred to as a current source or voltage source, is not shown in the figures and is only indicated by P IN .
  • the power amplifier 80 can be designed such that, together with the AC voltage source, either a low-impedance or high-impedance energy resource is generated on the transmitter device 2 for the resonant resonant circuit on the transmitter device 2.
  • electrical energy in the form of alternating current is then passed from the AC voltage source P IN via the power amplifier 80 into the first coil 5 at a frequency of 6.78 MHz.
  • the first coil 5 and the first capacitor 6 generate a resonant resonant circuit with an inductance of 1.58 ⁇ H and an electrical capacitance of 349 x 10 -12 F.
  • the resonant resonant circuit in the transmitter device 2 is highly resonant, the electrical energy in this resonant circuit is reduced only relatively slowly over a large number of cycles.
  • the transmitter device 2 to the receiver device 3 By arranging the transmitter device 2 to the receiver device 3 according to the invention, a relatively large part of the electrical energy can be transmitted from the resonant resonant circuit on the transmitter device 2 to the resonant resonant circuit on the receiver device 3.
  • the special design of the first coil 5 of the transmitter device 2 and the second coil 8 of the receiver device 3 results in an inductive coupling.
  • the coupled electrical fields of the two coils 5, 8 are so-called non-radiating near fields, which can also be referred to as evanescent waves.
  • the distance between the two coils 5, 8 is chosen so that it lies within the distance of 1 ⁇ 4 wavelengths, a large part of the electrical energy, i.e. with only slight losses, sent from the first coil 5 of the transmitter device 2 to the second coil 8 of the receiver device 3.
  • a suitably chosen ratio of the turns N 1 , N 2 on the transformer 15 can be used to adjust the impedance and adjust the electrical voltage, so that the consumer can be supplied with electrical voltage accordingly.
  • a typical output voltage range is between 3 V DC (direct voltage) and 500 V DC (direct voltage).
  • Figure 16 shows a schematic circuit diagram of a further embodiment of the transmitter device with a second and third capacitor 40, 42 and a second coil 44.
  • the third capacitor 42 and the second coil 44 are arranged parallel to one another to generate a further parallel resonant resonant circuit on the transmitter device 2.
  • the other parallel resonant circuit and the second capacitor 40 are arranged in series with each other.
  • the second capacitor 40 of the transmitter 2 decouples the power amplifier 80 from DC components and thereby prevents premagnetization of the inductance of the second coil 44 of the transmitter 2.
  • the further parallel resonant resonant circuit consisting of the third capacitor 42 and the second coil 44 symmetrizes this via the second capacitor 40 of the transmitting device 2 of the AC signal decoupled from DC components and dampens harmonic signal components caused by the switching behavior of the power amplifier 80.
  • the power amplifier 80 can be designed as a MOSFET output stage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Near-Field Transmission Systems (AREA)
EP18203702.8A 2018-10-31 2018-10-31 Circuit oscillant résonnant pour transmission d'énergie électrique sans amplificateur de puissance Withdrawn EP3648299A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18203702.8A EP3648299A1 (fr) 2018-10-31 2018-10-31 Circuit oscillant résonnant pour transmission d'énergie électrique sans amplificateur de puissance
PCT/EP2019/078352 WO2020088952A1 (fr) 2018-10-31 2019-10-18 Circuit résonnant pour la transmission d'énergie électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18203702.8A EP3648299A1 (fr) 2018-10-31 2018-10-31 Circuit oscillant résonnant pour transmission d'énergie électrique sans amplificateur de puissance

Publications (1)

Publication Number Publication Date
EP3648299A1 true EP3648299A1 (fr) 2020-05-06

Family

ID=68210818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18203702.8A Withdrawn EP3648299A1 (fr) 2018-10-31 2018-10-31 Circuit oscillant résonnant pour transmission d'énergie électrique sans amplificateur de puissance

Country Status (2)

Country Link
EP (1) EP3648299A1 (fr)
WO (1) WO2020088952A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2306617A1 (fr) * 2009-10-05 2011-04-06 Sony Corporation Appareil de transmission de puissance, appareil de réception de puissance et système de transmission de puissance
US20130223640A1 (en) * 2011-09-28 2013-08-29 Tdk Corporation Headphone, headphone stand and headphone system
DE102015107957A1 (de) * 2014-05-30 2015-12-03 Infineon Technologies Austria Ag Einstufige Gleichrichtung und Regelung für drahtlose Ladesysteme
JP2016187260A (ja) * 2015-03-27 2016-10-27 古河電気工業株式会社 ワイヤレス給電装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8742627B2 (en) * 2011-03-01 2014-06-03 Tdk Corporation Wireless power feeder
CN104604091A (zh) * 2012-09-06 2015-05-06 松下知识产权经营株式会社 非接触供电***和非接触扩展插件
JP2014204469A (ja) * 2013-04-01 2014-10-27 日東電工株式会社 無線電力伝送装置、無線電力伝送装置の供給電力制御方法、及び、無線電力伝送装置の製造方法
JP6683465B2 (ja) * 2015-12-07 2020-04-22 ラピスセミコンダクタ株式会社 送電装置及び電力伝送システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2306617A1 (fr) * 2009-10-05 2011-04-06 Sony Corporation Appareil de transmission de puissance, appareil de réception de puissance et système de transmission de puissance
US20130223640A1 (en) * 2011-09-28 2013-08-29 Tdk Corporation Headphone, headphone stand and headphone system
DE102015107957A1 (de) * 2014-05-30 2015-12-03 Infineon Technologies Austria Ag Einstufige Gleichrichtung und Regelung für drahtlose Ladesysteme
JP2016187260A (ja) * 2015-03-27 2016-10-27 古河電気工業株式会社 ワイヤレス給電装置

Also Published As

Publication number Publication date
WO2020088952A1 (fr) 2020-05-07

Similar Documents

Publication Publication Date Title
EP1261844B1 (fr) Systeme pour produire de l'energie electrique a partir d'un champ magnetique
EP1275208B1 (fr) Dispositif de transmission sans contact de signaux electriques ou d'energie electrique
DE102007060811A1 (de) Vorrichtung und Verfahren zur drahtlosen Energie- und/oder Datenübertragung zwischen einem Quellgerät und mindestens einem Zielgerät
DE102013217545B4 (de) System und verfahren für das senden eines hochfrequenzsignals mittels einer lautsprecherspule
EP2803143B1 (fr) Dispositif d'alimentation en énergie inductive
DE112013004520T5 (de) System zur kontaktlosen elektrischen Leistungszufuhr
DE3014153A1 (de) Spannungsregler
DE112019002703T5 (de) Vorrichtung zur kontaktlosen leistungsübertragung
DE10026175A1 (de) Induktiver Bus
DE112006003499T5 (de) Schaltkreis zum Übertragen einer verstärkten Schwingleistung an eine Last
DE112016007231T5 (de) Drahtloser Energiesender, drahtloses Energieübertragungssystem und Verfahren zum Ansteuern eines drahtlosen Energieübertragungssystems
EP3704781A1 (fr) Circuit résonnant pour la transmission d'énergie électrique
EP3704782A1 (fr) Circuit résonnant pour la transmission d'énergie électrique sans amplificateur de puissance
DE102004055154B4 (de) Verfahren zum Betrieb eines Systems zur berührungslosen Energieübertragung, System zur berührungslosen Energieübertragung und Übertragerkopf
DE3631138A1 (de) Spannungsquelle mit gleichspannungsumformer
EP3648299A1 (fr) Circuit oscillant résonnant pour transmission d'énergie électrique sans amplificateur de puissance
WO2014012834A2 (fr) Étage de sortie
EP2031731A1 (fr) Dispositif et procédé de transmission d'énergie et/ou de données sans fil entre un appareil source et au moins un appareil cible
EP3648300A1 (fr) Circuit oscillant résonant destiné à la transmission de l'énergie électrique
EP0684688A1 (fr) Générateur de puissance avec un transformateur
EP3648302A1 (fr) Circuit oscillant résonant destiné à la transmission de l'énergie électrique
DE202022001642U1 (de) Empfänger für resonante induktive Energieübertragung
EP3648301A1 (fr) Circuit oscillant résonant destiné à la transmission de l'énergie électrique
DE112015000884T5 (de) Induktive Ladevorrichtung
DE3823972A1 (de) Magnetischer strahler mit einer spule aus bifilaren windungen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20201107